[ofa-general] [PATCH] opensm: support multiple routers in a subnet

[Sasha Khapyorsky]

On 13:33 Sat 17 Nov     , Jason Gunthorpe wrote:
> On Fri, Nov 16, 2007 at 01:08:40AM -0700, Rolf Manderscheid wrote:
> 
> > If a path record query is made for an off-subnet DGID, the SA needs to
> > return a path record where the DLID points to the router port that
> > handles the DGID prefix.  In the case of a subnet with only one
> > router, the SA could just pick "the router", and that's exactly what
> > the ROUTER_EXP code did.  However, ROUTER_EXP did not look beyond the
> > first available router.
> 
> One thing we learned during the show is that the format of this file
> should be improved slightly. I suggest copying the usual linux 'ip
> route' syntax
> 
> 2001::/64 via fe80::xxx:xxxx:xxxx
> 
> The important thing is adding the prefix bits, but also normalzing the
> information to match IPv6 convections. In future other keywords beyond
> 'via' could be added, like 'mut' and or so on.
> 
> The special word 'default' means ::/0

It is nice idea. For me it looks such improvements could be done
subsequently and in way which preserved "backward compatibility", not
sure this is so important yet.

Sasha